Cushion-spring structure.



W. J. KELLY.

CUSHION SPRING STRUCTURE.

APPLICATION FILED FEB-5.19M.

1 70,841 Patented July 2, 1918.

INVENTOR W ATTORNEYS UNITED STATES PATENT OFFICE.

WILLIAM J. KELLY, 0F CLINTON, IOWA, ASSIGNOR TO FOSTER BROTHERS MANUFAG-TUBING COMPANY, OF UTICA,- NEW YORK.

CUSHION -SPRIN G STRUCTURE.

Specification of Letters Patent.

Patented July 2, 1918.

Application filed February 5, 1918. Serial No. 76,251. Y

'1. '0 all whom it may concern:

Be it known that I, WILLIAM J. KELLY, of Clinton, in the county ofClinton and State of Iowa, have invented certain new and usefulImprovements in Cushion-Spring Structures; and 1 do hereby declare thatthe following is a full, clear, and exact description thereof, whichwill enable others skilled in the art to which it appertains to make anduse the same, reference being had to the accompanying drawings, and tothe reference numerals marked thereon, which form part of thisspecification.

My present invention relates to cushion spring structures or structureswherein coiled springs are utilized to give the necessary size, shapeand especially resiliency to cushions of various sorts.

Heretofore various means have been adopted to prevent the coiled springsbrought to.- gether in such structure from making a nOiSe as the springsworked and particularly means have been sought to prevent such noise andincidentally assist in holding the individual springs in place where nometallic frame work has been used to keep the springs in position. Acommon form has been 7 to inclose the springs or a string of springs ina pocket or series of'pockets. These various ways of preventing noiseand of covering the springs have had serious disadvantages such asineffectiveness in accomplishing the main purpose sought, lack ofdurability, interference with the handling, grouping and securing of thesprings in the structure and high cost of construction.

To overcome these disadvantages and to produce an improved cushionspring structure is the main purpose of this invention.

A further purpose is to provide a novel, effective, convenient anddurable form of protected cushion springs.

A still further purpose is to provide an article of the classdescribedwhich is very economical in cost of production and which is economicaland convenient in handling at its various stages and particularly ingrouping into the various shapes and sizes of cushions.

A further purpose is to provide an article of the class describedwherein the coil ,springs are covered or protected at all points lockwithout possibility of making any noise or finding an unprotectedsurface.

Yet another purpose of my invention is to produce an article of theclass described of such construction that the covering over the coilsprings may be readily placed thereon by machinery or by relativelysimple machine processes instead of requiring individual hand work uponthe units of the structure.

Further purposes and advantages of my invention will appear from thespecification and claim herein.

Figure 1 shows a perspective view of a cushion seat of a constructionembodying my invention, a corner of the cushion covering being brokenaway to show the arrangement and construction of the coiled springs.

Fig. 2 is a vertical sectional view of two adjacent springs on a largerscale.

Referring to the drawings, it will be seen that my invention isillustrated in connection with a common form of spiral springs 4 havingtop and bottom coils 5 and 6.respectively substantially parallel witheach other and connected by the usual spiral or slanting coils 7. Itwill be obvious, however, that various other forms of coiled springs maybe used besides the cylindrical coils shown in the drawings.

These springs are covered with a layer of loose cotton 8 or other fiberof cushioning or sound-deadening quality. This layer of loose materialis held upon the surface of the springs 4 by glue 9 or some othersuitable strong durable adhesive. Any convenient form of applying thelue to the surface of the springs 4 may used such as spraying thesprings with the glue in liquid form or preferably dipping the springsbodily into liquid glue or other adhesive. Then while the glue or otheradhesive is wet or active upon the springs the layerof loose cotton orother fiber 8 is applied to the surfaces of the springs in any desiredway. Preferably as shown in the drawings the layer of loose fiber 8 willbe applied to every surface. of the springs 4, that is not only to theoutside surface where the springs naturally rub against each other whenbrought together in a cushion and the upper and lower surface of thevarious coils of the spring where they come together when the individualsprings contract or when adjahave the layer of also to the inward facingcoils. It will'be obvious that cotton or similar loose material of afibrous nature-applied to the springs as by glue will be held thereon'not only by the strength of the glue acting upon the immediate particleof material but that the fibers of the material will be glued somewhatto each other about the circumference of the wire of the springs and sohelp to securely hold the material upon the springs against any abrasiveaction of the s rings when in action. When loose soundeadening materialof less fibrous nature than cottonis used its particles will also moreor.

less adhere to each other with-the assistance of the glue about thesurface of the wire. It will be seen that in this product ,I haveproduced an article which effectively covers the entire outer surface ofthe springs and which adjacent springs can -be placed thereon readily bymachine processes and at little expense and with the use of materi lsthat are inexpensive.

The coiled springs for use in this struc ture may be secured to eachother either in 86 astring as suggested in Fig. 2 or in a more or lessregularly arranged mass such as suggestedin Fig. 1 by any suitable meanssuch as clips 10 encircling the nearest portions of and preferably assuggested applied to the upper and lower coils 5 and a 6 so-as tomaintain as regular a surface as possible at the top and bottom of the,cushion or other structure being formed. The mass of such springs may bethen inclosed within a covering 11 for an ordinary cushion I or used ina variety of ways well known in the art.

What I claim as new and desireto secure by Letters Patent is:

In a cushion spring structure a spiral spring covered with loose fiberheld thereon by an adhesive. h In witness whereof I have afiixedmy siganature, this 25th day of January, 1916.

WILLIAM J; KELLY.

' Witnesses:

MAUDE WHITE,

BERNADINE BACH.

